Do I need to book a time slot with my Merlin Annual Pass? All Annual Passholders must reserve their spot by pre-booking their visit online to guarantee entry.Please pre-book here. Related articles How do I collect my Merlin Annual Pass? Can I pre-book my visit to other attractions in advance? How does the time slot system work and what time should I turn up? Does WILD LIFE Sydney have a car park? Do I have to pay for a child under 2?